CD74HC138-Q1
HIGH-SPEED CMOS LOGIC
3- TO 8-LINE INVERTING DECODER/DEMULTIPLEXER
SCLS580A − APRIL 2004 − REVISED APRIL 2008
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
T
= −40°C
A
T
A
= 25°C
I
O
TO 125°C
PARAMETER
TEST CONDITIONS
V
UNIT
CC
(mA)
MIN
1.9
TYP
MAX
MIN
1.9
4.4
5.9
3.7
5.2
MAX
−0.02
2 V
−0.02 4.5 V
4.4
CMOS loads
−0.02
−4
6 V
4.5 V
6 V
5.9
V
V
V = V or V
V
OH
I
IH
IL
3.98
5.48
TTL loads
CMOS loads
TTL loads
−5.2
0.02
0.02
0.02
4
2 V
0.1
0.1
0.1
0.26
0.26
0.1
8
0.1
0.1
0.1
0.4
0.4
1
4.5 V
6 V
V = V or V
V
OL
I
IH
IL
4.5 V
6 V
5.2
I
V = V or GND
6 V
µA
µA
pF
I
I
CC
I
V = V or GND
0
6 V
160
10
CC
I
CC
C
10
IN
switching characteristics over recommended operating free-air temperature range (unless
otherwise noted) (see Figure 1)
T
= −40°C
A
T = 25°C
A
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
TO 125°C
PARAMETER
V
CC
UNIT
MIN
TYP
MAX
MIN MAX
C = 15 pF
L
5 V
2 V
13
150
30
225
45
A
E
Y
4.5 V
6 V
C = 50 pF
L
26
38
t
pd
ns
2 V
150
30
265
53
4.5 V
6 V
Y
Y
C = 50 pF
L
26
45
2 V
75
110
22
t
t
C = 50 pF
L
4.5 V
6 V
15
ns
13
19
operating characteristics, VCC = 5 V, TA = 25°C, Input tr, tf = 6 ns, CL = 15 pF
PARAMETER
TYP
UNIT
C
Power dissipation capacitance (see Note 4)
67
pF
pd
NOTE 4:
C
is used to determine the dynamic power consumption, per gate.
pd
2
P
D
= V
f (C + C )
CC
I
pd
L
f = input frequency
I
C = output load capacitance
L
V
CC
= supply voltage
4
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